Flow of Dilute Polymer Solutions Through Curved Pipes (Approximate Analysis of Turbulent Pipe Friction Loss)

抄録

Momentum integral equations for turbulent flow through curved pipes have been set up in consideration of a viscoelasticity of dilute polymer solutions and solved approximately. The resulting coefficient of pipe friction has been compared with experimental results and presented in a form suitable for engineering use. In addition, the boundary layer thickness, velocity distribution of the secondary flow and pressure difference between the inner and outer sides have been described.